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Promethium Advisors’s Blackrock BLK Stock Holding History

Promethium Advisors’s Portfolio BLK Stock Details BLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$497K Hold
517
– – 0.26% 72
2025
Q4 		$553K Sell
517
-1,435
-74% -$1.57M 0.3% 70
2025
Q3 		$2.28M Hold
1,952
– – 1.3% 26
2025
Q2 		$2.05M Sell
1,952
-43
-2% -$40.7K 1.24% 29
2025
Q1 		$1.89M Sell
1,995
-163
-8% -$160K 1.21% 29
2024
Q4 		$2.21M Buy
2,158
+22
+1% +$22.3K 1.51% 19
2024
Q3 		$2.03M Buy
+2,136
New +$1.85M 1.43% 20

Other funds holding BLK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $30.5B AUM 13.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Promethium Advisors's BLK Position: Q1 2026 in Review

Promethium Advisors held its Blackrock (BLK) position steady in Q1 2026 at 517 shares worth $497K. The position accounts for 0.26% of the portfolio, ranked #72.

Promethium Advisors first reported a position in BLK in Q3 2024 and has held it in 7 quarters since. The position peaked at $2.28M in Q3 2025. 2,321 funds tracked by Wall St. Rank hold BLK as of Q1 2026.

  • Promethium Advisors held 517 shares of Blackrock worth $497K as of Q1 2026.
  • Promethium Advisors left its Blackrock share count unchanged in Q1 2026.
  • Blackrock made up 0.26% of Promethium Advisors's portfolio in Q1 2026, its #72 holding.
  • Promethium Advisors first reported a position in Blackrock in Q3 2024 and has held it in 7 quarters since.
  • Promethium Advisors's Blackrock position peaked at $2.28M in Q3 2025.
  • 2,321 funds tracked by Wall St. Rank held Blackrock as of Q1 2026.

Based on Promethium Advisors's 13F filing for Q1 2026, filed 22 Apr 2026.